编者语
前言(1)写给老师
前言(2)写给同学
Unit1 The laser and light theme park
Unit2 Health
Unit3 How we communicate
Unit4 The media
Unit5 Films
Unit6 Mainly Revision
Unit7 Papua New Guinea
Unit8 Medicine
Unit9 Conversation
Unit10 Shopping
Unit11 Natural disaster
Unit12 Mainly revision
Unit13 International cooperation
Unti14 Around the world
Unit15 Crime&punishment
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